{"id":7601,"date":"2026-06-26T06:52:21","date_gmt":"2026-06-26T06:52:21","guid":{"rendered":"https:\/\/materialparts.com\/lm340mp-5-0-nopb\/"},"modified":"2026-06-29T09:40:24","modified_gmt":"2026-06-29T09:40:24","slug":"lm340mp-5-0-nopb","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/lm340mp-5-0-nopb\/","title":{"rendered":"LM340MP-5.0\/NOPB"},"content":{"rendered":"

Productos<\/h2>\n

The LM340MP-5.0\/NOPB from Texas Instruments is a 1.5A, 35V input, fixed 5V positive linear voltage regulator in a SOT-223 package. Part of the legendary LM340\/7805 family, it features internal current limiting, thermal shutdown, and safe-area compensation, making it essentially indestructible with adequate heatsinking. Output voltage tolerance is +\/-2% at 25\u00b0C.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Output Voltage<\/td>\n5.0V fixed (+\/-2%)<\/td>\n<\/tr>\n
Corriente de salida<\/td>\n1.5A<\/td>\n<\/tr>\n
Input Voltage<\/td>\n7V to 35V<\/td>\n<\/tr>\n
Dropout Voltage<\/td>\n2V (typical at 1A)<\/td>\n<\/tr>\n
Line Regulation<\/td>\n0.01%\/V (LM340A at 1A)<\/td>\n<\/tr>\n
Load Regulation<\/td>\n0.3%\/A (LM340A)<\/td>\n<\/tr>\n
Ripple Rejection<\/td>\n80 dB (typical)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n0\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n
Paquete<\/td>\nSOT-223 (DCY), 6.5 x 3.5 mm<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • 1.5A output current capability<\/li>\n
  • Internal thermal overload protection<\/li>\n
  • Internal short-circuit current limiting<\/li>\n
  • Safe-area compensation for output transistor<\/li>\n
  • Output capacitance not required for stability<\/li>\n
  • +\/-2% output voltage tolerance at 25\u00b0C<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Local on-card voltage regulation<\/li>\n
    • 5V logic power supply from 9V\/12V source<\/li>\n
    • Power supply post-regulation<\/li>\n
    • Battery charger regulation<\/li>\n
    • General-purpose 5V power regulation<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LM340MP-5.0\/NOPB from Texas Instruments is a 1.5A, 35V input, fixed 5V positive linear voltage regulator in a SOT-223 package. Part of the legendary LM340\/7805 family, it features internal current limiting, thermal shutdown, and safe-area compensation, making it essentially indestructible with adequate heatsinking. Output voltage tolerance is +\/-2% at 25\u00b0C. Key Specifications Output […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19,13,32],"tags":[],"chip_brand":[138],"class_list":["post-7601","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","chip_brand-ti"],"acf":{"brief_explanation":"1.5A fixed 5V linear regulator, 35V input, thermal protection, SOT-223","date_code":"","package_case":"SOT-223 (DCY) 6.5 x 3.5 mm","in_stock":10935,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/lm340.pdf","price":"$0.553 @ 1ku","product_introduction":"The LM340MP-5.0\/NOPB is a monolithic 3-terminal positive voltage regulator from Texas Instruments. It is part of the LM340\/LM7805 family, one of the most widely used linear regulator families in the electronics industry. The device employs internal current-limiting, thermal shutdown, and safe-area compensation, making it extremely robust and reliable. With adequate heatsinking, it can deliver over 1.5A of output current. The SOT-223 package provides a good balance between compact size and thermal performance. The device is intended for fixed 5V regulation in a wide range of applications including local on-card regulation for elimination of noise and distribution problems associated with single-point regulation.","working_principle":"The LM340MP-5.0\/NOPB uses a series pass transistor controlled by a feedback loop that compares a fraction of the output voltage (via an internal resistor divider) with a precision bandgap reference. The error amplifier drives the base of the series pass transistor to maintain the output at 5.0V. Internal current-limiting circuitry senses the output current and limits it to a safe value during overload or short-circuit conditions. The thermal shutdown circuit monitors junction temperature and turns off the output when it exceeds approximately 170\u00b0C. Safe-area compensation reduces the current limit as the input-output differential increases, ensuring the pass transistor operates within its safe operating area at all times. No output capacitor is required for stability, although one improves transient response.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>GND\/Tab<\/td>Ground<\/td>Ground and thermal pad<\/td><\/tr>
      2<\/td>OUT<\/td>Output<\/td>Regulated 5V output, up to 1.5A<\/td><\/tr>
      3<\/td>IN<\/td>Power<\/td>Input voltage (7V to 35V)<\/td><\/tr><\/table>","application_scenarios":"
      • 5V logic supply: Classic 7805 replacement for digital IC power from 9V\/12V wall adapters<\/li>
      • Local regulation: On-card 5V regulation eliminates noise from long power supply traces<\/li>
      • Post-regulation: Clean 5V output after switching converter for analog\/digital circuits<\/li>
      • Industrial control: Robust thermal and short-circuit protection for harsh environments<\/li>
      • Battery devices: 1.5A capability for motor-driven and relay-switching applications<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>LM340MPX-5.0\/NOPB<\/td>SOT-223<\/td>Tape and reel version<\/td><\/tr>
        TI<\/td>UA7805CKTTR<\/td>TO-252 (DPAK)<\/td>1.5A, DPAK package, surface mount<\/td><\/tr>
        ONsemi<\/td>MC7805ECTG<\/td>TO-220<\/td>1A, through-hole, classic 7805<\/td><\/tr>
        ST<\/td>L7805CV<\/td>TO-220<\/td>1.5A, industry standard 7805<\/td><\/tr>
        Infineon<\/td>TLE4274GV33<\/td>TO-252<\/td>3.3V, 200mA, automotive<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/7601","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=7601"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/7601\/revisions"}],"predecessor-version":[{"id":8691,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/7601\/revisions\/8691"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=7601"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=7601"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=7601"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=7601"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}